Home / 692,152.40-1,038,811.80-313,655.60

Finding the Fourth Proportional to 692,152.40, 1,038,811.80 and 313,655.60

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Solution

The fourth proportional to 692,152.40, 1,038,811.80 and 313,655.60 is: 470,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,152.40 : 1,038,811.80 = 313,655.60 : x
  2. Step 2: Convert to fraction form
    692,152.40/1,038,811.80 = 313,655.60/x
  3. Step 3: Cross multiply
    692,152.40x = 1,038,811.80 × 313,655.60
  4. Step 4: Simplify right side
    692,152.40x = 325,829,138,416.08
  5. Step 5: Solve for x
    x = 325,829,138,416.08/692,152.40
  6. Step 6: Final answer
    x = 470,747.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.